diff options
| author | Ido Yariv <ido@wizery.com> | 2014-07-29 15:38:53 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2014-08-26 11:15:59 +0200 |
| commit | ca34e3b5c808385b175650605faa29e71e91991b (patch) | |
| tree | 306b688cae1820d65902c31c82b95f4c23e9293b /include/net/mac80211.h | |
| parent | 170fd0b1f6108b48df4369afa0ee29a83e922748 (diff) | |
| download | blackbird-op-linux-ca34e3b5c808385b175650605faa29e71e91991b.tar.gz blackbird-op-linux-ca34e3b5c808385b175650605faa29e71e91991b.zip | |
mac80211: Fix accounting of the tailroom-needed counter
When hw acceleration is enabled, the GENERATE_IV or PUT_IV_SPACE flags
will only require headroom space. Consequently, the tailroom-needed
counter can safely be decremented.
Signed-off-by: Ido Yariv <idox.yariv@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'include/net/mac80211.h')
| -rw-r--r-- | include/net/mac80211.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 1cd84444665c..1fbed0a6d556 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -1226,7 +1226,8 @@ struct ieee80211_vif *wdev_to_ieee80211_vif(struct wireless_dev *wdev); * * @IEEE80211_KEY_FLAG_GENERATE_IV: This flag should be set by the * driver to indicate that it requires IV generation for this - * particular key. + * particular key. Setting this flag does not necessarily mean that SKBs + * will have sufficient tailroom for ICV or MIC. * @IEEE80211_KEY_FLAG_GENERATE_MMIC: This flag should be set by * the driver for a TKIP key if it requires Michael MIC * generation in software. @@ -1238,7 +1239,9 @@ struct ieee80211_vif *wdev_to_ieee80211_vif(struct wireless_dev *wdev); * @IEEE80211_KEY_FLAG_PUT_IV_SPACE: This flag should be set by the driver * if space should be prepared for the IV, but the IV * itself should not be generated. Do not set together with - * @IEEE80211_KEY_FLAG_GENERATE_IV on the same key. + * @IEEE80211_KEY_FLAG_GENERATE_IV on the same key. Setting this flag does + * not necessarily mean that SKBs will have sufficient tailroom for ICV or + * MIC. * @IEEE80211_KEY_FLAG_RX_MGMT: This key will be used to decrypt received * management frames. The flag can help drivers that have a hardware * crypto implementation that doesn't deal with management frames |
